cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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pci-direct.h (740B)


      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef _ASM_X86_PCI_DIRECT_H
      3#define _ASM_X86_PCI_DIRECT_H
      4
      5#include <linux/types.h>
      6
      7/* Direct PCI access. This is used for PCI accesses in early boot before
      8   the PCI subsystem works. */
      9
     10extern u32 read_pci_config(u8 bus, u8 slot, u8 func, u8 offset);
     11extern u8 read_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset);
     12extern u16 read_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset);
     13extern void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, u32 val);
     14extern void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val);
     15extern void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val);
     16
     17extern int early_pci_allowed(void);
     18#endif /* _ASM_X86_PCI_DIRECT_H */